They've already made them (or plan to make them) available as softcovers in their current split-up format. It's unlikely they'd go to the trouble of doing compiled print runs for such niche titles. (Just opinion of course, hence a comment and not an answer.)
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SevenSidedDieApr 30 '11 at 17:50

Thats a good point and shows perhaps Dungeon Fantasy was a bad example for that question. They have many other series- Action or the new Monster Hunters.
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Jeffrywith1eApr 30 '11 at 23:15

+1. It's my understanding that even the two Compendia were exceptions to the rule, deemed necessary just to bring more than a decade of rules expansions in diverse sourcebooks under control and under one set of covers. I don't think they set a precedent.
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SevenSidedDieMay 1 '11 at 16:58

1

Not just diverse, but often, "out of print due to license expiry." Horseclans, Commonwealth, the Prisoner, and a few other 1E era sourcebooks were unable to be reprinted due to no longer being licensed, but had rules referenced in other works. Also, many of them had divergent point values; 3E was consolidating everything to a single point value per skill, advantage or disadvantage.
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aramisMay 2 '11 at 4:45

IIRC, they have stated that the work compiling the PDF exclusive series into a single (hard|soft)cover book would not economically sound. It would require quite a bit of reediting, and they can only expect to cover the cost of printing for the big generic core books which appeal to a large cross-section of the players.